I wrote on October 20 about the problems I was having with my quilter. See post here. In short, my Bottom Line thread was separating into two plies, and eventually one of them was shredding. I had changed to a larger needle because I've heard that can be an issue with shredding. Not much better.
I emailed to Superior Threads and they suggested loosening the tension. I decided to thread my machine only thru 2 of the three holes in a certain spot in the thread path, and loosen the upper tension. My stitches did look good before this tho.
Superior's suggestions helped some, but still ongoing. I was getting very frustrated!
I left a message for Handi Quilter's tech number, and they called back. She asked me how tight my bobbin was, and told me to loosen that, and then loosen the top a lot too, and change back to size 14 needle. Go back to three holes.
I did all that, and have beautiful results now! I'm guessing I have always adjusted my bobbin too tight. Guess I should read the directions from HQ, and not go by the You Tube tuts??
My Sweetie and I are friends again!